DRILLING MACHINE Russian patent published in 1996 - IPC

Abstract RU 2054542 C1

FIELD: mining industry. SUBSTANCE: drilling machine body accommodates cylinder liner with piston which consists of the upper part and lower part. Inner surfaces of pistons are concave in shape and form closed cavity filled with fluid in which electrodes are immersed. Spring is installed above upper part of piston in cylinder liner. Lower part of piston transforms into striker. Rotary motion is transmitted through reducing gear. EFFECT: higher efficiency. 1 dwg

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RU 2 054 542 C1

Authors

Dmitriev V.T.

Talalaenko V.A.

Dmitriev S.V.

Sitnikov N.B.

Dates

1996-02-20—Published

1993-02-02—Filed